Corrugated Adhesives - Cardboard Industry

The corrugated board is made by gluing flute and kraft. Starch-based adhesives for corrugated boxes have used as corrugated adhesives since the beginning of the industry. The adhesion base is on a hydrogen bond between starch molecules of the glue and cellulose molecule of the paper.

A corrugated board is a construction whose strength depends on its "bonding points."

The bonding quality determines the ultimate strength of the corrugated cardboard.

Starch glue, even if appropriately prepared, it's water-soluble. Starch glue weakens in a humid environment, and the board loses its strength until total separation occurs. Therefore, the corrugated cardboard factories should add additives in starch adhesive for corrugated board.